package dao.Impl;

import dao.Paper;

public class TextPaper implements Paper {
    //每行字符数
    private  int charPerLine=16;
    //每页行数
    private int linePerPage=5;
    //纸张中内容
    private String content="";
    //当前横向位置，从0到charPerLine-1
    private int posX=0;
    //当前行数,从0到linePerPage-1
    private int posY=0;
    //当前行数
    private int posp=1;

    @Override
    public void putInChar(char c) {
        content +=c;
        ++posX;
        //判断是否换行
        if (posX==charPerLine){
            content +=Paper.newline;
            posX=0;
            ++posY;
        }
        //判断是否翻页
        if (posY==linePerPage){
            content+="==第"+posp+"页==";
            content +=Paper.newline+Paper.newline;
            posY=0;
            ++posp;
        }
    }

    @Override
    public String getContent() {
        String ret=this.content;
        //补齐本页空行，并显示页码
        if (!(posX==0 && posY==0)){
            int count =linePerPage-posY;
            for (int i=0;i<count;++i){
                ret +=Paper.newline;
            }
            ret +="==第"+posp+"页==";
        }
        return ret;
    }

    public int getCharPerLine() {
        return charPerLine;
    }

    public void setCharPerLine(int charPerLine) {
        this.charPerLine = charPerLine;
    }

    public int getLinePerPage() {
        return linePerPage;
    }

    public void setLinePerPage(int linePerPage) {
        this.linePerPage = linePerPage;
    }
}
